HUT71257A - Process for producing vitamin e - Google Patents
Process for producing vitamin eInfo
- Publication number
- HUT71257A HUT71257A HU9402669A HU9402669A HUT71257A HU T71257 A HUT71257 A HU T71257A HU 9402669 A HU9402669 A HU 9402669A HU 9402669 A HU9402669 A HU 9402669A HU T71257 A HUT71257 A HU T71257A
- Authority
- HU
- Hungary
- Prior art keywords
- producing vitamin
- vitamin
- producing
- Prior art date
Links
- 229940088594 vitamin Drugs 0.000 title 1
- 229930003231 vitamin Natural products 0.000 title 1
- 235000013343 vitamin Nutrition 0.000 title 1
- 239000011782 vitamin Substances 0.000 title 1
- 150000003722 vitamin derivatives Chemical class 0.000 title 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D311/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings
- C07D311/02—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings ortho- or peri-condensed with carbocyclic rings or ring systems
- C07D311/04—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring
- C07D311/58—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring other than with oxygen or sulphur atoms in position 2 or 4
- C07D311/70—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring other than with oxygen or sulphur atoms in position 2 or 4 with two hydrocarbon radicals attached in position 2 and elements other than carbon and hydrogen in position 6
- C07D311/72—3,4-Dihydro derivatives having in position 2 at least one methyl radical and in position 6 one oxygen atom, e.g. tocopherols
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pyrane Compounds (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4208477A DE4208477A1 (en) | 1992-03-17 | 1992-03-17 | METHOD FOR PRODUCING VITAMIN E |
Publications (3)
Publication Number | Publication Date |
---|---|
HU9402669D0 HU9402669D0 (en) | 1995-02-28 |
HUT71257A true HUT71257A (en) | 1995-11-28 |
HU214095B HU214095B (en) | 1998-03-02 |
Family
ID=6454252
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
HU9402669A HU214095B (en) | 1992-03-17 | 1993-03-05 | Process for producing vitamin e |
Country Status (10)
Country | Link |
---|---|
US (1) | US5468883A (en) |
EP (1) | EP0631577B1 (en) |
JP (1) | JP2550288B2 (en) |
CA (1) | CA2091729C (en) |
CZ (1) | CZ281829B6 (en) |
DE (2) | DE4208477A1 (en) |
ES (1) | ES2101306T3 (en) |
HU (1) | HU214095B (en) |
SK (1) | SK112094A3 (en) |
WO (1) | WO1993019057A1 (en) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3416281B2 (en) * | 1994-04-12 | 2003-06-16 | エーザイ株式会社 | Method for producing α-tocopherol derivative and catalyst |
US5663376A (en) † | 1994-07-27 | 1997-09-02 | Eisai Co., Ltd. | Process for the preparation of α-tocopherol |
DE19524928A1 (en) * | 1995-07-08 | 1997-01-09 | Basf Ag | Process for the rectification of mixtures of high-boiling air and / or temperature sensitive substances, which require a high separation performance, in a fine vacuum, as well as columns suitable for this process |
US5886196A (en) * | 1996-01-12 | 1999-03-23 | Roche Vitamins Inc. | Method of catalyzing condensation reactions |
DE10011403A1 (en) * | 2000-03-09 | 2001-09-13 | Degussa | Production of alpha-tocopherol acetate useful as feed additive involves condensation of trimethylhydroquinone and isophytol in presence of a regenerable catalyst system followed by acylation of the resultant alpha-tocopherol |
AU2002227934A1 (en) | 2000-11-22 | 2002-06-03 | Basf Aktiengesellschaft | Method for continuously acylating chromanol ester derivatives |
DE10135714A1 (en) * | 2001-07-21 | 2003-02-06 | Basf Ag | Processing of vitamin E-acetate containing product stream, comprises use of thin film evaporator, falling film evaporator or flash evaporator with at least two step partial condensation |
US7858813B2 (en) | 2004-08-19 | 2010-12-28 | Dsm Ip Assets B.V. | Process for the rectification of mixtures of high-boiling air-and/or temperature-sensitive useful products |
WO2006018310A2 (en) * | 2004-08-19 | 2006-02-23 | Dsm Ip Assets B.V. | Process for the working-up of a vitamin e- and vitamin e-acetate and rectification colum suitable therefore |
DE102005013103A1 (en) | 2005-03-18 | 2006-09-28 | Sms Demag Ag | Controlled thickness reduction in hot-dip coated hot rolled steel strip and equipment used in this case |
CN106478581A (en) * | 2016-08-30 | 2017-03-08 | 芜湖华海生物工程有限公司 | A kind of preparation method of Vitwas E |
CN113083339B (en) * | 2021-04-15 | 2022-11-08 | 万华化学(四川)有限公司 | Catalyst for preparing vitamin E and preparation method and application thereof |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3459773A (en) * | 1966-12-27 | 1969-08-05 | Takasago Perfumery Co Ltd | Process for producing alpha-tocopherol and its esters |
US3708505A (en) * | 1971-02-25 | 1973-01-02 | Diamond Shamrock Corp | Process for preparation of d,l-alpha tocopherol |
BE810299A (en) * | 1974-01-29 | 1974-05-16 | METHOD OF MANUFACTURING COMPOUNDS CONTAINING A CHROMAN CORE. | |
US4217285A (en) * | 1976-09-29 | 1980-08-12 | Nisshin Flour Milling Co., Ltd. | Process for the preparation of Dl-α-tocopherol of high purity |
JPS6019309B2 (en) * | 1976-09-29 | 1985-05-15 | 日清製粉株式会社 | Production method of high purity dl-α-tocopherol |
DE3367100D1 (en) * | 1982-07-29 | 1986-11-27 | Basf Wyandotte Corp | Alpha tocopherol process |
-
1992
- 1992-03-17 DE DE4208477A patent/DE4208477A1/en not_active Withdrawn
-
1993
- 1993-03-05 DE DE59306604T patent/DE59306604D1/en not_active Expired - Fee Related
- 1993-03-05 WO PCT/EP1993/000498 patent/WO1993019057A1/en active IP Right Grant
- 1993-03-05 ES ES93906485T patent/ES2101306T3/en not_active Expired - Lifetime
- 1993-03-05 JP JP5516203A patent/JP2550288B2/en not_active Expired - Lifetime
- 1993-03-05 CZ CZ942250A patent/CZ281829B6/en not_active IP Right Cessation
- 1993-03-05 US US08/302,743 patent/US5468883A/en not_active Expired - Fee Related
- 1993-03-05 EP EP93906485A patent/EP0631577B1/en not_active Expired - Lifetime
- 1993-03-05 SK SK1120-94A patent/SK112094A3/en unknown
- 1993-03-05 HU HU9402669A patent/HU214095B/en not_active IP Right Cessation
- 1993-03-16 CA CA002091729A patent/CA2091729C/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
HU214095B (en) | 1998-03-02 |
US5468883A (en) | 1995-11-21 |
DE4208477A1 (en) | 1993-09-23 |
EP0631577B1 (en) | 1997-05-28 |
CZ281829B6 (en) | 1997-02-12 |
SK112094A3 (en) | 1995-04-12 |
CA2091729C (en) | 1999-11-23 |
WO1993019057A1 (en) | 1993-09-30 |
HU9402669D0 (en) | 1995-02-28 |
JPH07507274A (en) | 1995-08-10 |
JP2550288B2 (en) | 1996-11-06 |
CA2091729A1 (en) | 1993-09-18 |
DE59306604D1 (en) | 1997-07-03 |
CZ225094A3 (en) | 1995-04-12 |
ES2101306T3 (en) | 1997-07-01 |
EP0631577A1 (en) | 1995-01-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
HMM4 | Cancellation of final prot. due to non-payment of fee |